SN74LS251N datasheet(5/6 Pages) MOTOROLA

Part #	SN74LS251N

Description	8-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

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Manufacturer	MOTOROLA [Motorola, Inc]

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5 / 6 page

5-414

FAST AND LS TTL DATA

MIN

MAX

MILLIMETERS

INCHES

DIM

A

B

C

D

F

G

J

K

M

P

R

9.80

3.80

1.35

0.35

0.40

0.19

0.10

0°

5.80

0.25

10.00

4.00

1.75

0.49

1.25

0.25

7°

6.20

0.50

0.386

0.150

0.054

0.014

0.016

0.008

0.004

0°

0.229

0.010

0.393

0.157

0.068

0.019

0.049

0.009

7°

0.244

0.019

1.27 BSC

0.050 BSC

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A AND B DO NOT INCLUDE MOLD

PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)

PER SIDE.

5. 751B01 IS OBSOLETE, NEW STANDARD

751B03.

1

8

9

16

-A-

-B-

P

16 PL

D

-T-

K

C

G

M

R X 45

°

F

J

8 PL

SEATING

PLANE

Case 751B-03 D Suffix

16-Pin Plastic

SO-16

B

0.25 (0.010) M

M

T

0.25 (0.010)

B

A

M

S

Case 648-08 N Suffix

16-Pin Plastic

MIN

MAX

MILLIMETERS

INCHES

DIM

A

B

C

D

F

G

H

J

K

L

M

S

18.80

6.35

3.69

0.39

1.02

0.21

2.80

7.50

0°

0.51

19.55

6.85

4.44

0.53

1.77

0.38

3.30

7.74

10°

1.01

0.740

0.250

0.145

0.015

0.040

0.008

0.110

0.295

0°

0.020

0.770

0.270

0.175

0.021

0.070

0.015

0.130

0.305

10°

0.040

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L" TO CENTER OF LEADS WHEN

FORMED PARALLEL.

4. DIMENSION B" DOES NOT INCLUDE MOLD

FLASH.

5. ROUNDED CORNERS OPTIONAL.

6. 64801 THRU 07 OBSOLETE, NEW STANDARD

64808.

2.54 BSC

1.27 BSC

0.100 BSC

0.050 BSC

-A-

B

1

8

9

16

F

H

G

D

16 PL

S

C

-T- SEATING

PLANE

K

J

M

L

T A

0.25 (0.010) M

M

Case 620-09 J Suffix

16-Pin Ceramic Dual In-Line

MIN

MAX

MILLIMETERS

INCHES

DIM

19.05

6.10

0.39

1.40

0.23

0°

0.39

19.55

7.36

4.19

0.53

1.77

0.27

5.08

15°

0.88

0.750

0.240

0.015

0.055

0.009

0°

0.015

0.770

0.290

0.165

0.021

0.070

0.011

0.200

15°

0.035

1.27 BSC

2.54 BSC

7.62 BSC

0.050 BSC

0.100 BSC

0.300 BSC

A

B

C

D

E

F

G

J

K

L

M

N

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L TO CENTER OF LEAD WHEN

FORMED PARALLEL.

4. DIM F MAY NARROW TO 0.76 (0.030) WHERE

THE LEAD ENTERS THE CERAMIC BODY.

5. 62001 THRU 08 OBSOLETE, NEW STANDARD

62009.

-B-

-A-

16 PL

-T-

C

D

E

F

G

J

K

M

N

SEATING

PLANE

16 PL

L

16

9

1

8

0.25 (0.010)

T A

M

S

0.25 (0.010)

T B

M

S

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